About 40 people took part in the candlelight vigil on the steps of the Chester County Courthouse in West Chester, Pa., Saturday night to remember victims of gun violence and to urge lawmakers to enact what the rally organizers called common-sense legislation. Photographs for the Gun Crisis Reporting Project by Tom Kelly IV.

The names of those killed in mass shootings over the past 10 years were read aloud as participants held candles, according to a report at dailylocal.com. The organizers urged members of Congress to support what attendees called common-sense gun violence prevention measures, such as legislation introduced by Sen. Pat Toomey, R-Pa., and Sen. Joe Manchin, D-W.Va., to require background checks for commercial gun sales.